/* === viewing.cc - index page === */

/* ---- Page background ---- */
body {
    background: var(--bg-color);
}

/* ---- Hero ---- */
.hero-section {
    text-align: center;
    padding: 18px 16px 14px;
    margin-bottom: 12px;
    border-bottom: 1px solid var(--border-color);
}

.hero-content {
    max-width: 480px;
    margin: 0 auto;
}

.hero-title {
    margin: 0 0 4px;
    font-size: 28px;
    font-weight: 700;
    color: var(--accent-color);
    font-family: 'Courier New', 'Consolas', 'Monaco', monospace;
}

.hero-tagline {
    margin: 0;
    font-size: 13px;
    color: var(--link-item-info-color);
}

/* ---- Search ---- */
.search-section {
    margin-bottom: 10px;
}

.search-wrapper {
    position: relative;
    max-width: 520px;
    margin: 0 auto;
}

.search-input {
    width: 100%;
    min-height: 38px;
    padding: 6px 42px 6px 32px;
    font-size: 14px;
    border: 1px solid var(--border-color);
    border-radius: 2px;
    background: var(--card-bg-color);
    color: var(--text-color);
    transition: border-color var(--transition), box-shadow var(--transition);
    box-shadow: var(--shadow-xs);
    line-height: 1.5;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='14' height='14' viewBox='0 0 24 24' fill='none' stroke='%23999' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Ccircle cx='11' cy='11' r='8'%3E%3C/circle%3E%3Cpath d='m21 21-4.35-4.35'%3E%3C/path%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: 10px center;
}

.search-input:focus {
    outline: none;
    border-color: var(--accent-color);
    box-shadow: 0 0 0 2px var(--accent-light);
}

.search-input::placeholder {
    color: var(--link-item-info-color);
}

.search-clear {
    position: absolute;
    right: 32px;
    top: 50%;
    transform: translateY(-50%);
    background: none;
    border: none;
    color: var(--link-item-info-color);
    cursor: pointer;
    width: 22px;
    height: 22px;
    font-size: 16px;
    border-radius: 2px;
    display: none;
    transition: color var(--transition);
    line-height: 1;
}

.search-clear:hover {
    color: var(--text-color);
}

.search-input:not(:placeholder-shown) ~ .search-clear {
    display: flex;
    align-items: center;
    justify-content: center;
}

.search-hint {
    position: absolute;
    right: 8px;
    top: 50%;
    transform: translateY(-50%);
    font-size: 10px;
    color: var(--link-item-info-color);
    pointer-events: none;
    background: var(--link-item-bg-color);
    padding: 1px 5px;
    border-radius: 2px;
    border: 1px solid var(--border-color);
    font-family: inherit;
    transition: opacity var(--transition);
    line-height: 1.4;
}

.search-input:focus ~ .search-hint {
    opacity: 0;
}

/* ---- No results ---- */
.no-results {
    text-align: center;
    padding: 24px 16px;
    color: var(--link-item-info-color);
    font-size: 14px;
    display: none;
}

.no-results.visible {
    display: block;
}

/* ---- Tabs ---- */
.tabs-wrapper {
    display: flex;
    gap: 4px;
    margin-bottom: 10px;
    overflow-x: auto;
    padding-bottom: 2px;
    scrollbar-width: thin;
    -webkit-overflow-scrolling: touch;
}

.tab-btn {
    flex: 0 0 auto;
    padding: 4px 12px;
    background: transparent;
    border: 1px solid var(--border-color);
    border-radius: 2px;
    cursor: pointer;
    font-size: 12px;
    font-weight: 500;
    color: var(--link-item-info-color);
    transition: background-color var(--transition), color var(--transition), border-color var(--transition), transform var(--transition-fast);
    user-select: none;
    white-space: nowrap;
}

.tab-btn:hover {
    color: var(--text-color);
    border-color: var(--accent-color);
    background: var(--accent-light);
    transform: scale(1.04);
}

.tab-btn.active {
    background: var(--accent-color);
    border-color: var(--accent-color);
    color: #fff;
}

/* ---- Category ---- */
.category {
    background-color: var(--card-bg-color);
    border-radius: 2px;
    padding: 12px 14px;
    margin-bottom: 10px;
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.06);
    border: 1px solid var(--border-subtle);
}

.category-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 8px;
    padding-bottom: 6px;
    border-bottom: 1px solid var(--border-color);
}

.category-title {
    margin: 0;
    color: var(--text-color);
    font-size: 14px;
    font-weight: 600;
    display: flex;
    align-items: center;
    gap: 6px;
}

/* Category icons */
.category[data-type="常用"] .category-title::before { content: '\2b50'; font-size: 13px; }
.category[data-type="开发调试"] .category-title::before { content: '\1f527'; font-size: 13px; }
.category[data-type="文本处理"] .category-title::before { content: '\1f4dd'; font-size: 13px; }
.category[data-type="文件工具"] .category-title::before { content: '\1f4c1'; font-size: 13px; }
.category[data-type="硬件参考"] .category-title::before { content: '\1f4bb'; font-size: 13px; }
.category[data-type="日常工具"] .category-title::before { content: '\1f6e0\fe0f'; font-size: 13px; }
.category[data-type="小游戏"] .category-title::before { content: '\1f3ae'; font-size: 13px; }

.category-count {
    font-size: 11px;
    color: var(--link-item-info-color);
    background: var(--link-item-bg-color);
    padding: 2px 8px;
    border-radius: 2px;
    font-weight: 500;
}

/* ---- Link cards ---- */
.links-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
    gap: 8px;
}

.link-item {
    background-color: var(--link-item-bg-color);
    border-radius: 2px;
    padding: 10px 12px;
    min-height: 80px;
    display: flex;
    flex-direction: column;
    text-decoration: none;
    position: relative;
    transition: background-color var(--transition), box-shadow var(--transition), transform var(--transition-fast);
    border: 1px solid transparent;
    box-shadow: 1px 1px 3px rgba(0, 0, 0, 0.06);
}

.link-item:hover {
    background-color: var(--card-bg-color);
    box-shadow: 1px 3px 8px rgba(0, 0, 0, 0.10);
    transform: translateY(-2px);
    border-color: var(--border-color);
}

.link-item:active {
    transform: translateY(0);
}

.link-item.no-link {
    cursor: default;
    opacity: 0.45;
}

.link-item.no-link:hover {
    transform: none;
    border-color: transparent;
    box-shadow: 1px 1px 3px rgba(0, 0, 0, 0.06);
    background-color: var(--link-item-bg-color);
}

.link-item-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    margin-bottom: 4px;
    gap: 6px;
}

.link-item-name {
    color: var(--link-item-text-color);
    font-weight: 600;
    font-size: 13px;
    flex: 1;
    overflow-wrap: anywhere;
    line-height: 1.4;
}

.link-item-star {
    background: transparent;
    border: none;
    font-size: 13px;
    cursor: pointer;
    width: 22px;
    height: 22px;
    color: var(--link-item-info-color);
    transition: color 0.2s ease, transform 0.2s ease, opacity 0.2s ease;
    opacity: 0;
    border-radius: 2px;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.link-item:hover .link-item-star,
.link-item-star.active {
    opacity: 1;
}

.link-item-star:hover {
    transform: scale(1.2);
    color: #f0a020;
}

.link-item-star.active {
    color: #f0a020;
}

.link-item-info {
    margin: 0;
    font-size: 12px;
    color: var(--link-item-info-color);
    line-height: 1.5;
    flex: 1;
}

.tags-container {
    margin-top: 6px;
    display: flex;
    flex-wrap: wrap;
    gap: 3px;
}

.tag {
    display: inline-block;
    background-color: var(--accent-light);
    color: var(--accent-color);
    padding: 1px 6px;
    border-radius: 2px;
    font-size: 11px;
    font-weight: 500;
    line-height: 1.4;
}

/* ---- Recent ---- */
.recent-section {
    margin-bottom: 12px;
}

.recent-section.hidden {
    display: none;
}

.recent-section .category-header {
    margin-bottom: 8px;
    padding-bottom: 6px;
}

.recent-grid {
    display: flex;
    flex-wrap: wrap;
    gap: 6px;
}

.recent-item {
    display: inline-flex;
    align-items: center;
    gap: 5px;
    padding: 4px 10px;
    background: var(--link-item-bg-color);
    border-radius: 2px;
    font-size: 12px;
    color: var(--link-item-text-color);
    text-decoration: none;
    transition: background-color var(--transition), color var(--transition), border-color var(--transition), transform var(--transition-fast);
    border: 1px solid transparent;
    max-width: 100%;
}

.recent-item span {
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.recent-item:hover {
    background: var(--accent-light);
    color: var(--accent-color);
    border-color: var(--accent-color);
    transform: scale(1.03);
}

.recent-item-close {
    background: none;
    border: none;
    color: var(--link-item-info-color);
    cursor: pointer;
    width: 16px;
    height: 16px;
    font-size: 12px;
    line-height: 1;
    opacity: 0;
    transition: opacity var(--transition), color var(--transition);
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 2px;
    flex-shrink: 0;
}

.recent-item:hover .recent-item-close {
    opacity: 1;
}

.recent-item-close:hover {
    color: var(--danger-color);
}

/* ---- Footer ---- */
.footer-info {
    text-align: center;
    padding: 12px 16px;
    color: var(--link-item-info-color);
    font-size: 12px;
    margin-top: 8px;
}

.footer-info code {
    background: var(--link-item-bg-color);
    padding: 2px 8px;
    border-radius: 2px;
    font-family: 'Consolas', 'Monaco', 'Courier New', monospace;
    font-size: 11px;
}

/* ---- Focus ---- */
.link-item-star:focus-visible,
.recent-item-close:focus-visible,
.tab-btn:focus-visible,
.search-clear:focus-visible {
    outline: 2px solid var(--accent-color);
    outline-offset: 2px;
}

@media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
    .tab-btn:hover,
    .link-item:hover,
    .link-item:active,
    .link-item-star:hover,
    .recent-item:hover {
        transform: none;
    }
}

/* ---- Responsive ---- */
@media (max-width: 768px) {
    .hero-section {
        padding: 14px 12px 10px;
    }

    .hero-title {
        font-size: 24px;
    }

    .search-hint {
        display: none;
    }

    .search-clear {
        right: 10px;
    }

    .search-input {
        padding-right: 34px;
        padding-left: 30px;
        background-position: 8px center;
    }

    .links-grid {
        grid-template-columns: 1fr;
    }

    .link-item {
        min-height: auto;
        padding: 8px 10px;
    }

    .category {
        padding: 10px;
    }
}

@media (max-width: 480px) {
    .hero-title {
        font-size: 22px;
    }

    .hero-tagline {
        font-size: 12px;
    }

    .search-input {
        font-size: 16px; /* prevent iOS zoom */
        min-height: 36px;
    }
}